it was kind of difficult to hear yamanaka this morning. he said he was thankful for all the support he's received here. >> i think i'm very lucky because i was able to join them 30 years ago. >> this was a revolution in biology. no one thought it worked this way. that with just turn ag few switches you could create such a profound change in the identity of the cell, and this swept the world. >> reporter: these are pictures given to us by ucsf this morning. the potential benefits, researchers say, include better drug discovery, tailoring of the right medicine to the right patient and improved regenerative medicine, particularly for the heart, the brain, the retina, even diseases like alzheimer's. yamanaka shared the reward with british researcher john gurdon. this is actually the second time that a ucsf researcher has won this award. reporting live in san francisco, christie smith, nbc bay area news. >> what a wonderful honor. thank you, christie. >>> new this morning, an earthquake struck in the north bay at 9:09 this morning. the 3 boyne